Repairing Lenovo R61i fan assembly replacement or cleaning

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• identify the exact type of your ThinkPad
• get the right fan assembly, in this case FRU P/N: 42W2779
• disconnect power-supply
• detach battery
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• find all five screws with the shown symbols and unscrew them
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• unscrew all the shown screws
• These ones are tiny
• watch the sizes of the screws
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• remove the palm rest carefully
• If you have a touchpad or fingerprint reader watch the cables
• blow the dust away
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• lift the keyboard carefully
• watch the cable
• Use a spudger to detach the cable
• lift the keyboad and leave it on the side
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• just for reference: images showing the keyboard-connector
• blow the dust away
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• unscrew the left and right screw of the keyboard bezel and speakers
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• unscrew the first two screws of the shielding
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• carefully lift the wireless antenna cable from the cable guide
• unscrew the last two screws from the keyboard bezel
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• watch the claws of the bezel (Sorry, no image!)
• carefully pull out the keyboard bezel
• flip the bezel 180°
• watch the cables
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• remove the wireless antenna cable from the cable guide of the fan assembly
• you might want to use a metal spudger to widen the cable guide if necessary
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• unscrew the fist, tiny screw of the clip
• unscrew the longer screw of the clip
• remove the clip
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• remove the shorter screw of the second clip
• remove the longer screw of the second clip
• remove the clip
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• remove the last two screws of the fan assembly
• detach the power cord with a spudger
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• CPU with thermal grease
• other chip with termal grease
• carfully lift the fan assembly
• you may need to pull a little more because of the thermal grease
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• blow the dust away
• take a spudger and remove the old thermal grease
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• get a paper-wiper
• wrap the wiper around the spudger
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• get some alcohol on the wiper
• clean the CPU with the wiper
• clean the chip with the wiper
• Ensure there is no old thermal grease left
• Follow this guide to add new thermal paste to the CPU.
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• now place the new fan assembly
• pay attention to the thermal grease on the backside of your new fan assembly
• press down the CPU- and chip-connector
• don't forget to plugin the power cable of the fan assembly
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Dennis

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